Cultivator.



No. 677,836. Patnted Jul 2, 19m.

.1.- m. WRIGHT.

CULTIVATOR.

(Application filed Dec 5, 1909.) (No Modl.) 4 Sheets-Sheet- I.

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Patented July 2, lao'l.

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GULTIVAT'OR.

lication filed. Dec 5, 1900 4 Sheets-Sheet 2.

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OULTIVATOB.

(Application filed Dec. 5, 1900.)

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No. 677,836. Patented luly'.2, I901.

J; M. WRIGHT.

GULTIVATOR.

(Application med Dec 5, 1900.)

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UNIT-ED STATES PATENT OFFICE.-

- JOHN M. WRIGHT, OF DAVID CITY, NEBRASKA.

CULTIVATOR.

sPEoIFIoA'TroN forming part of Letters Patent No. 677,836, dated July 2 1901.

Application filed December 5, 1900. Serial No. 38,778. (No model.)

To all whom/it 7nd concern;

Be it'known that L'JOHN MPYVRIGHT, a

r citizen of the'United States, residing at David City, in'the county of Butler and State of Nebraska, have invented a new and useful Cultivator, of which the following is a's pecifica-. tion.

My invention is an improved cultivator; and it consists in the peculiar construction and combination of devices hereinafter set forth, and pointed out in the claims.

One object of my invention is to effect improvements in the construction of the cultivator whereby the weight of the driver is utilized in the operation of the plow.

A further object of my invention is to ef-' fect improvements in the construction of the cultivator whereby the center of the arched axle is relieved of stress.

A further object of'my invention is to pro- 'vide a cultivator which is convertible and is adapted to be used either as a single-row or double-row cultivator. 3

In the accompanying drawings, Figure 1 is a top plan view of a double-mow cultivator adapted to be drawn by three horses and con structed in accordance with my invention. Fig. 2 is a front elevation of the same, partly in section, on a plane indicated by the line a a of Fig. 1. Fig. 3 is a vertical longitudinal sectional view of the same on a plane indicated by the line b b of Fig. 1. Fig. 4 is a top plan view of my improved cultivator modified for use as a'single-row cultivator. Fig. 5 is a vertical longitudinal sectional view of the same on a plane indicated by the line 0 c of Fig. i. Fig. 6 is a front elevation of the same, partly in section, on a plane indicated by the line d d of Fig. 1. Fig. 7 is a detail perspective view. Fig. 8 is a detail perspective view of the hinge-plates and archbar for flexibly connecting the rear ends of a pair of the plow-beams together, so that they are' adapted to be swung laterally in unison, and of a handle for operating the plow-beams,

showing the means for connectingthe said.

handle to the said arch-bar.

I will first describe my invention when organized as a double-row cultivator and adapted to be drawn by three-horses.

The axle 1 is arched and comprises the central tubular section 2 and the end sections 3,

which telescope in the central section 2 and are secured therein by set-screws, as at 4. On the section 2, at a suitable distance from the ends thereof, are secured plates 5, which are provided at their sides with vertical upturned ears or lugs 6-, and the front portions of the said plates project forward of the axle and are bolted on the rear upper portion of the tongues or poles 7. Inverted- U shaped arched standards 8 are bolted on'the said tongues or poles, as at 9, and depend therefrom. The said poles or tongues are connected together at a suitable distance in advance of the axle by an arched bar 10, which is bolted on the central portion of the arched standards 8, as shown. Brace-rods 11 are bolted to the said arched standards 8 and to the said'tongues or poles.

To the lowerportions of the standards 8 are bolted laterally-extending link-frames 12 13. The link-frames 12 are bolted to the outer standards 8 and extend outward therefrom. The link-frames 13 are bolted to the inner standards 8 and extend inwardly therefrom toward each other, and said link-frames 13 have at their inner ends on their lower sides downturned extensions which form lugs '14. A draft-link 15 has its lower end pivoted between the said lugs let by the bolt 16, which connects the inner ends of the frames 13 together. The said draft-link'15 is provided with a series of adjusting openingsi 15 for the attachment of the central singletree 17.

A brace-rod 18 has its upper end secured to thecen'terof the axleby a clip-bolt 19.

The lower end of the said brace-rod is forked v or bifurcated andis secured on the outer sides of the lugs 1 1 of link-frames 13 by the bolt 16. Brace-rods 2O 21 have their rear ends con nected to the end sections 3 of the axle by clip-bolts, as shown, and the front ends of the said brace-rods are connected to the outer sides or ends of the link-frames 12 by bolts 22. Draft-links 23 have their lower ends pivoted on the said bolts. The inner ends of the link-frames 13 are connected together by a rearward-extending semicircular bar 24:. The same strengthens the connection between the link-frames 13 and permits the movement of the draft-link 15. Draft-levers 25 are pivoted on the upper sides of the poles or tongues 7 by bolts 26 at points about one-third the the outer draft-links 23, to which draft-links 23 are attached the outer singletrees 30.

The beams 31 of the cultivator-plows have their front ends pivotally connected to hingeplates 32 by horizontally-disposed bolts 33. The front ends of the said hinge-plates are pivotally connected'to the link-frames 12 13 I byvertically-disposed bolts 34, whereby the saidbeams 31 are adapted to be swung laterally and to be also raisedand lowered at their rear ends, as will be understood. The said beams 31 are connected together in pairs near their rear ends by arched bars 35 and hinge-plates 36. The latter are bolted to the said beams, as shown, and the said arched bars 35 are pivotally connected to said hingeplates by vertically-disposed pintle-bolts 37. A handle 38 is provided for each pair of the plow-beams. The said handles have their front ends bolted to the inner sides of the arched bars 35, as at 39, and are connected to said arched bars by brace-bars 40. The.

said handles 38 are disposed as shown and extend rearwardl y fromthe plow-beams.

otthe U shaped metallic straps 41, which are bolted to the said plow-handles, as at 42, and are secured on the upper and lower ends of the pintle-bolts 37, as shown.

means of the handles 38 and their connections the pairs of plow-beams may be readily guided and manipulated by the driver and thatthe lateral play of the rear ends of the handles is reduced to the minimum, thus lessening the labor of the driver.

Lever-frames 43 are fulcrumed at a suit able distance from the rear ends thereof by bolts 44 to the lugs or ears 6 of plates 5. The

rear ends of the said lever-frames are connected together by a cross-bar 45. To the front ends of the said lever-frames are pivot ally connected lever-bars 46, which are transversely disposed thereon, and to the ends of said lever-bars are attached the upper ends of link-bars 47 which carry antifriction-rollers 48 at their lowerends. Said antifrictionrollers engage the lower sides of bars 49, the front ends of which are pivotally connected to the hinge-plates 32. The rear portions of said bars 49 are connected to the plow-beams 31 by straps 50. The said straps and said bars 49 have adjusting-openings for the bolts 51, which connect said straps and bars together, and thereby said bars 49 may be adjusted to any desired inclination. It will be understood that when the rear ends of the leverframes 43 are depressed by the means herein- To strengthen the connections at the outer ends plow-handles, I provide substantially,

after-described the front ends thereof in rising cause the links '47 to draw upward on the bars 49 and straps 51, connected to the front portions of the plow-beams, so as to raise the rear ends of the plow-beams,and thereby raise by the strap or link 55 to the central portion of the cross-bar 45, which connects the rear ends of the lever-frames together. 7

From the foregoing and by reference to the drawings it will be understood that the weight of the driver tends to raise the rear ends of the plowbe'ams, and thereby materially assists the driver in the manipulation of the cultivating-plows. 'It willxbe furthermore observed and understood that the strap 55 forms, as it were, afulcrum'for the seat-lever 53, so that the front end of the seat-lever tends to exert an upward thrust under the center'of the axle, and hence the latter is relieved of stress at its central portion, where axles are ordinarily comparatively weak, and hence by my improvedconstruction a comparatively light axle may be employed without the danger of its being broken.

' It will be understood that the draftis equalized between the draft-animals and applied equally to all ofthe plow-beams.

I will now describe the modified form of my invention shown in Figs. 4, 5, and 6, in

which my cultivator is adapted for cultivat-- ing a single row and to be drawn by only two animals. In this form of my invention the From the foregoing it will be seen that by central section of the axle is reduced in length to narrow the space between the supportingwheels, and a single draft pole or tongue 7 is employed, the rear end of which is provided with a hand-lock 7 which by engagement 7 with the cross-bar 63 enables the tongue to be secured at any desired adjustment. A U-shaped standard-frame 8 is pivoted on said draft pole or tongue and depends therefrom, and laterally-extending loops or links 12 are formed with said frame, the latter being braced by brace-rods 56, which connect the same to the draft pole or tongue. In this form of my invention the central draft-link is discarded and the draft-links 23 have their upper ends connected by the rods 29 to the end of a lever 57, which is fulcrumed at the center on the draft pole or tongue. A U- shaped frame 58 has the rear ends of its arms connected to the central portion of the axle, as at-59. The front portion of said U-shaped frame 58 is bolted to the standard-frame 8. Within said U-shaped frame 58and pivotally connected thereto by bolts 66 is a U-shaped lever 61, the rear ends of the arms of which are connected together by a cross-bar 62, said cross-bar being secured to said arms by vertically-disposed bolts 63. A link-lever 64 has its central portion pivotally connected to the hearing on the cross-bar 62.

transversely-disposed front portion of the lever 61. The ends of the said link-lever 64 are connected, by the meanshereinbefore described,to the front portions of the plow-beams S1, of which a pair only is employed, each of said plow-beams having a handle 38. The seat-supporting lever 53 has the front ends of its arms secured by the bolts 60, said lever A transversely disposed brace-bar 63' has its ends secured on said bolts 60.

Having thus described my invention, I claim- 1. The combination of an axle, longitudinally-disposed levers fulcrumed thereon, at points distant from the center thereof, a crossbar connecting the rear portions of said levers,ploW-beams having their front endsfiexibly connected to fixed points, whereby the rear ends of the said plow-beams may be raised and lowered, connections between said plow-beams and said levers, and a seatsup porting-bar having its front end connected to. the said axle, said bar being connected to said cross-bar, substantially as described.

2. The combination of a seat-supporting lever, a support therefor, a plow-beam flexibly connected to a fixed point, a link depending from said lever, and a vertically-adjustable loop-bar on said plow-beam, to which said link is connected, substantially as described.

3. The combination of a seat-supporting lever, a support therefor,-a plow-beam flexibly connected to a fixed point, a link depending from said lever, a loop-bar pivotally connected to the plow-beam and engaged by said link, and means to adjust said loop-bar, substantially as described.

4. In a cultivator, the combination of an axle, draft poles or tongues attached thereto, standards depending from said tongues,plowbeams flexibly connected to said standards,

-levers supported on said axle, at points remote from the center thereof, a cross-bar connecting said levers, in rear of said axle, connections between said levers and the plowbeams, and a seat-supporting bar connected to and extending rearward from the center of the axle, said seat-supporting bar being connected to said cross-bar, whereby the weight of the driver is utilized in raising the rear ends of the beams, and whereby the central portion of the axle is relieved of stress, substantially as described.

5. In a cultivator, the combination of a supporting-frame, plow-beams having their front ends flexibly connected to said frame, an arch-bar having hinged connections at its ends to the said beams, and a handle carried by and attached to said arch-bar, substantially as described. 6. The combination of the hinge-plates 36 adapted to be bolted to plow-beams, the arch bar having its ends pivotally connected to said hinge-plates, the handle having one end connected to one side of the arch-bar and a brace-bar connecting the saidhandle to said c JOHN M. WRIGHT;

Vitnesses: r

A. H. BETZER, W. E. HEWIT. 

